#
# Makefile
#

ARCH:=arm
AR:=arm-openwrt-linux-gnueabi-ar
CC:=arm-openwrt-linux-gnueabi-gcc
CXX:=arm-openwrt-linux-gnueabi-g++

ifndef R528_TOOLCHAIN
$(error must set R528_TOOLCHAIN value)
endif

LVGL_DIR_NAME ?= lvgl
LVGL_DIR ?= ${shell pwd}
CFLAGS ?= -Os -pipe -march=armv7-a -mtune=cortex-a7 -mfpu=neon -fno-caller-saves -Wno-unused-result -mfloat-abi=hard  -Wformat -Werror=format-security -fPIC -D_FORTIFY_SOURCE=2 -Wl,-z,now -Wl,-z,relro -DUSE_SUNXIFB_DOUBLE_BUFFER -DUSE_SUNXIFB_CACHE -DUSE_SUNXIFB_G2D -DUSE_SUNXIFB_G2D_ROTATE -DCONF_G2D_VERSION_NEW -I. -Wall -Wshadow -Wundef -Wmissing-prototypes -Wno-discarded-qualifiers -Wall -Wextra -Wno-unused-function -Wno-error=strict-prototypes -Wpointer-arith -fno-strict-aliasing -Wno-error=cpp -Wuninitialized -Wmaybe-uninitialized -Wno-unused-parameter -Wno-missing-field-initializers -Wtype-limits -Wsizeof-pointer-memaccess -Wno-format-nonliteral -Wno-cast-qual -Wunreachable-code -Wno-switch-default -Wreturn-type -Wmultichar -Wformat-security -Wno-ignored-qualifiers -Wno-error=pedantic -Wno-sign-compare -Wno-error=missing-prototypes -Wdouble-promotion -Wclobbered -Wdeprecated -Wempty-body -Wtype-limits  -Wstack-usage=2048 -Wno-unused-value -Wno-unused-parameter -Wno-missing-field-initializers -Wuninitialized -Wmaybe-uninitialized -Wall -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Wtype-limits -Wsizeof-pointer-memaccess -Wno-format-nonliteral -Wpointer-arith -Wno-cast-qual -Wmissing-prototypes -Wunreachable-code -Wno-switch-default -Wreturn-type -Wmultichar -Wno-discarded-qualifiers -Wformat-security -Wno-ignored-qualifiers -Wno-sign-compare

LDFLAGS ?= -specs=../hardened-ld-pie.specs -znow -zrelro -luapi -lm #-rpath-link=$(R528_TOOLCHAIN)/lib

BIN = lv_examples

#Collect the files to compile
MAINSRC = ./main.c

include $(LVGL_DIR)/lvgl/lvgl.mk
include $(LVGL_DIR)/lv_drivers/lv_drivers.mk
include $(LVGL_DIR)/lv_demos/lv_demo.mk

OBJEXT ?= .o

AOBJS = $(ASRCS:.S=$(OBJEXT))
COBJS = $(CSRCS:.c=$(OBJEXT))

MAINOBJ = $(MAINSRC:.c=$(OBJEXT))

SRCS = $(ASRCS) $(CSRCS) $(MAINSRC)
OBJS = $(AOBJS) $(COBJS)

## MAINOBJ -> OBJFILES

all: default

%.o: %.c
	@$(CC)  $(CFLAGS) -c $< -o $@
	@echo "CC $<"
    
default: $(AOBJS) $(COBJS) $(MAINOBJ)
	$(CC) -o $(BIN) $(MAINOBJ) $(AOBJS) $(COBJS) $(LDFLAGS)

clean: 
	rm -f $(BIN) $(AOBJS) $(COBJS) $(MAINOBJ)

